NOK 90311-48020 Front Crankshaft Oil Seal

The NOK 90311-48020 is a precision-engineered front crankshaft oil seal designed to provide reliable sealing performance in automotive engines. This seal measures 48mm x 68mm x 7mm and features NOK's proven seal design that prevents oil leaks while maintaining optimal crankshaft rotation.

Key Features:

• Manufactured by NOK Corporation, Japan's first oil seal manufacturer with expertise in developing and manufacturing oil seals
• Premium synthetic rubber construction bonded to a metal ring for durability
• Integrated spring mechanism provides consistent sealing pressure on the crankshaft
• Prevents engine oil leakage and contamination from external debris
• Direct OEM replacement quality ensuring proper fit and function

This seal prevents fluids, such as lubricants and water, and gases used in mechanical products from leaking at their gaps, while also keeping dust, dirt and sand particles from intruding from outside. Replaces part number 90311-48021, providing a reliable solution for maintaining engine integrity and preventing costly oil loss.